<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Web_demo</title>
    <meta http-equiv="X-UA-Compatible" content="ie=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1, maximum-scale=1, user-scalable=no, minimal-ui">
</head>
<body>
<div id="app" style="margin: 0;padding: 0;" >
</div>
</body>
</html>
